YS/T 1032-2015 (YST1032-2015)

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YS/T 1032-2015	English	149	Add to Cart	3 days [Need to translate]	Inspection method of the interior defects for cathode carbon block for aluminium electrolysis	YS/T 1032-2015	Valid	YS/T 1032-2015

YS/T 1032-2015
(Aluminum electrolytic cathode carbon block internal defect inspection method)
ICS 71.100.10
Q52
People's Republic of China Nonferrous Metals Industry Standard
Aluminum electrolytic cathode carbon block internal defect inspection method
Issued on. 2015-04-30
2015-10-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) and focal points.
This standard is drafted by. Aluminum Corporation of China Zhengzhou Research Institute, Technical and Economic Research Institute of Nonferrous Metals.
Participated in the drafting of this standard. Zhengzhou Haoyu Carbon Materials Co., Ltd., Shanxi Jinyang Carbon Co., Ltd., Yunnan Aluminum shares have
Limited, Ningxia Ning Ping Carbon Co., Ltd., Beijing Science and Technology Co., Ltd. British Spike.
The main drafters of this standard. warehouse Xiang-Hui, Zhang North Korea, Xi Zhao Yang, Li Jiaying, Chen Hong, CHEN Xiao-jun, Li Zhongwen, Li Rong column, Li Ruiling.
Aluminum electrolytic cathode carbon block internal defect inspection method
1 Scope
This standard specifies the method of contacting ultrasonic pulse was detected cathode blocks internal cracks and holes and other defects.
This standard applies to aluminum electrolytic cathode carbon block, carbon products may refer to other uses.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 9445 NDT personnel qualification and certification
GB/T 12604.1 Terminology for nondestructive testing Ultrasonic testing
Characterization of GB/T 18694 NDT Ultrasonic inspection and sound field
Reference blocks and test methods GB/T 18852 Non-destructive testing - Ultrasonic examination measuring touch probe beam characteristics
3 Terms and Definitions
GB/T 12604.1 defined and the following terms and definitions apply to this document.
3.1
Sound when flight-time
Time of sample required ultrasound through. According to their size can be determined whether there are defects.
3.2
The first wave of first-wave
Ultrasonic flaw detector receiving the first wave waveform. Depending on the shape and amplitude of the waveform can determine whether defective.
3.3
Amplitude amplitude
The size of the waveform change ultrasonic testing samples produced, usually the amount of attenuation to represent.
4 principle of the method
The use of non-metal detectors produce low-frequency pulses through the probe (wafer) electro-acoustic converting incoming sound waves propagate inside the specimen sonic
Encountered acoustic impedance dissimilar (eg defects) interface, the reflected sound waves will occur. By the probe acoustic energy into electrical impulses displayed on the oscilloscope screen, root
According to the sample and the speed of sound wave type, to judge internal defects specimen.
5 device
5.1 ultrasonic flaw detector
Technical indicators 5.1.1 flaw detector test shall comply with the relevant testing technical conditions, flaw detector test should be conducted regularly.
5.1.2 ultrasonic detector operating frequency should not exceed 2.0MHz; cathode blocks for the operating frequency of testing is generally not more than 1.0MHz.